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by: Daisy |
last post by:
Let's say I've got a forum, where users can be moderators of each forum.
Tables look like this:
USER
--------
user_key
name
FORUM
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by: Lars Netzel |
last post by:
I have a VB.NET application based on MS access 2000 db.
I have a 1 to many relation between 4 tables...
tbl1 -> tbl2 -> tbl3 -> tbl4 (all with "one to many" relations)
I need to create a Dataset that includes all these tables and keeps the
realtion
When I use an OLEdb Adapter and generate a dataset (in VS) based on that I
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by: Geoff Jones |
last post by:
Hi
Can anybody help me with the following, hopefully simple, question?
I have a table which I've connected to a dataset. I wish to add a new column
to the beginning of the table
and to fill it with incremental values e.g. if the tables looks
like this:
23 56
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by: Daniele |
last post by:
What is the approach to save data for tables with a many to many
relation usign an intermediate table?
I know I can explictily write relationships using ado.net but I have
no clues how to INSERT/UPDATE the intermediate table.
May you help?
Thanks,
Daniele
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by: Robert Bravery |
last post by:
Hi All,
I'm New to VS.net. Trying to figure out this new dataset thingy.
Ok so I add a dataadapter with all the correct properties for a table. Then
generate the dataset. Now open the dataset and drag another table from the
server explorer, set up some relations there. Set up two grids, one a s a
parent one as a chgild. Fill the dataset, run the form
But my child grid never gets any records.
I then added another datadapter for the child...
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by: Joe |
last post by:
Hi
I have a dataset with 3 tables and 2 relations
Is there a way to when I am at 1 row to tell if there is a relation on that
row ???
I have the code hardcoded but try to make it work if the # of tables and
#relations increase or decrease
So I can just pass any dataset and walk thru the rows??
Thanks
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by: cbrown |
last post by:
I am rebuilding an existing application that relies on an SQL DB. The
app is a scheduling/employee management program. My question pertains
to best practices in dotnet and database.
I use a 3 tier model and have custom classes for things like Employees.
What comes to question is when I load an Employee from my DB, I
populate the properties of the object with the data in the dataset.
When I want to view the employee on a form, i bind...
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by: kevlar |
last post by:
I am having some problems reading xml into a dataset and having it set up the datatables within it properly. i serialize an object into xml and read that xml into the dataset and the code i am working with relies on the datatables within it to all be constructed with the proper relations. however in certain cases this doesnt happen. here is a sample of the xml i'm working with:
<AuthResponse>
<info>
...
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by: Eddie |
last post by:
I have a DataSet with relations and other constraints being populated from
the backend (SQL Server 2005). I use DataSet.FillSchema to retrieve the
table schema for each table in the dataset. I then create the appropriate
relations between the tables. I will use a webmethod with a return type of
either XmlNode or DataSet to return the data and the schema? Each call to
the webmethod will return the data and the schema.
Question:
...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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